John o feeball



(No Model.)

Y J. OFERRALL.

GAN 'SOLDYERING MACHINE. No. 884,464. PatentedJune 12, 1888.

@4MM A 878m@ UNITED STATES PATENT -EETCE JOHN OFERRALL, OF BALTIMORE, MARYLAND.

CAN-soLDEm-NG MACHINE.

SPECIFICATION forming part of Letters Patent No. 384.464,-, dated June 12, 1888.

Application filed August 8, 1887. Serial No. 246,377.

(No model.)

-citizen of the United States, residing at Baltimore city, in the State of Maryland, have invented certain new and useful Improvements in CauSoldering Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

Myinvention relates to machines for solof superior finish.

Referring to the drawings forming part of this application, Figure l is a front elevatioii showing one form of mechanism whereby my invention may be practiced. Fig. 2 is a side elevation, partly in section, showing the solder-bath and the devices for supporting and revolving the can.

In the said drawings the referenceletter A denotes the reservoir or heating-vessel, within which the melted solder employed is contained, a recess, a, being formed near one side to receive the angle of the inclined can and permit it to turn therein in contact with the melted solder.

B represents an inclined bracket having a support, O, within which is journaled a shaft, D, having a handewheel, E, by which the can may be revolved. rlhe can is held by means of a clamping-disk, d, on the shaft D, and a clamping-disk, c, having a stem or spindle that is loosely supported in a socket, b, on the top of the reservoir. The shaft D is loosely engaged with a bell-crank lever, G, that is pivoted on the bracket B and connected with a treadle-rod, H, and with a It will be seen that the spring K by drawing on one arm of the bell-crank causes its other arm to hold the shaft D and its clamp-A ing-disk d in contact with the can head or bottom, as the case may be, and thus hold the can in contact with the clampingdisk c at its other end. By drawing the horizontal arm of the lever G downward its other arm will move the shaft D longitudinally away from the can, and therebyY release it when the soldering is completed. Vithin the reservoir or heating-chamber A is a gas-jet, F, by which the solder contained in the bath or groove a is kept in a melted condition.

The device thus far described may be of any suitable construction and arrangement, whether new or old. The form shown in the drawings is preferable, however, being that now in general use.

Upon each side of the can, at points just above that where its angular edge enters and leaves the solderbath, I locate blow-pipes or gasjets E E', of any suitable construction, the arrangement being such that the two will operate simultaneously in the same or about the same plane, and in opposite directions, against the soldered joint of the can. It will thus be seen thatthe flames are directed against the angular edge and bottom of the can at or a little above the points where it enters and after it emerges from the liquid solder in the recess a.

As a result of this operation the solder is, in the language of the shop, sweated in77 throughout the entire joint or seam, completely inclosing the edges of the metal, illing the joint uniformly, materially increasing the strength and durability of the can, and adding greatly to the uniformity and beauty of finish.

I make no claim to the devices shown for supporting and rotating the can through the solderbath, nor do I claim the method of connecting the can-body and can-bottom by passing the parts united and held in proper relative position through a bath of melted solder; but

What I do claim, and desire to secure by Letters Patent of the United States, is -f 1. In a can-soldering machine, the combination, with a solder-bath, of burners located IOO on opposite sides of and above the point where the ean-sean1 enters and emerges from the bath, whereby the solder is swented into the seam from the outside, substantially as described.

2. The combination, with a reservoir having a solder-groove, a, of the burners E' E', located on opposite sides of and above the point where the head or bottom seam of a can ro is made to enter and emerge from said soldergroove, whereby the solder is sweoted into the seam from the outside, substantially as described.

In testimony whereof I afx my signature in presence of two witnesses.

JOHN O FERRALL.

fitnessesz S. BRAsHEARs, W. J. BRASHERS. 

